Koesan
South Korea · 44K
Lifestyle Calendar
When this city supports your activity — and when it fights you.
Koesan
South Korea
Dinner Outside6 – 10 pm
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Verdict
Jan: 0% viability
0Feb: 1% viability
1Mar: 11% viability
11Apr: 38% viability
38May: 71% viability
71Jun: 84% viability
84Jul: 72% viability
72Aug: 72% viability
72Sep: 85% viability
85Oct: 42% viability
42Nov: 6% viability
6Dec: 0% viability
0Cold
Friction Breakdown
Heat
Cold
Wind
Rain
Humid
Air Q.
Best months: May–SepChallenging: Jan–Apr, Nov–Dec
ComfortableModerateUncomfortable
Based on 2014–2024 hourly climate data · Updated Mar 2025Confidence: ●●●
Air Quality Profile
Annual and monthly PM2.5 levels against WHO guidelines.
Koesan
South Korea
Annual Average
ModerateWHO annual classification
21.3µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
2626 µg/m³ — Poor
2727 µg/m³ — Poor
2525 µg/m³ — Moderate
2323 µg/m³ — Moderate
2222 µg/m³ — Moderate
2222 µg/m³ — Moderate
1818 µg/m³ — Moderate
1818 µg/m³ — Moderate
1313 µg/m³ — Fair
1818 µg/m³ — Moderate
2222 µg/m³ — Moderate
2222 µg/m³ — Moderate
Jan
Feb
Mar
Apr
May
Jun
2626 µg/m³ — Poor
2727 µg/m³ — Poor
2525 µg/m³ — Moderate
2323 µg/m³ — Moderate
2222 µg/m³ — Moderate
2222 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
1818 µg/m³ — Moderate
1818 µg/m³ — Moderate
1313 µg/m³ — Fair
1818 µg/m³ — Moderate
2222 µg/m³ — Moderate
2222 µg/m³ — Moderate
Best months: Aug–OctWorst months: Jan–Mar
Fair10–15 µg/m³Moderate15–25 µg/m³Poor25–35 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholdsConfidence: ●●●
Sun & UV Profile
Monthly sunshine, sky clarity, and UV exposure patterns.
Koesan
South Korea
Annual Summary
Sunshine
2,043hrs/yr
Clear sky
46%
Worst month
3.6hrs/day
Vit D months
7.0months
UV 8+ days
11days/yr
UV 11+ days
0days/yr
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Daily hrs
7.37.3 hrs — Good
8.58.5 hrs — Sunny
9.39.3 hrs — Sunny
1010 hrs — Very Sunny
1010 hrs — Very Sunny
9.79.7 hrs — Sunny
7.77.7 hrs — Good
7.07.0 hrs — Good
8.28.2 hrs — Sunny
8.78.7 hrs — Sunny
7.67.6 hrs — Good
7.57.5 hrs — Good
Jan
Feb
Mar
Apr
May
Jun
7.37.3 hrs — Good
8.58.5 hrs — Sunny
9.39.3 hrs — Sunny
1010 hrs — Very Sunny
1010 hrs — Very Sunny
9.79.7 hrs — Sunny
Jul
Aug
Sep
Oct
Nov
Dec
7.77.7 hrs — Good
7.07.0 hrs — Good
8.28.2 hrs — Sunny
8.78.7 hrs — Sunny
7.67.6 hrs — Good
7.57.5 hrs — Good
Best months: Apr–JunWorst months: Jan, Aug, Dec
GoodSunnyVery Sunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●